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Chapter 10: Q10.95P (page 409)

Hydrogen cyanide can be catalytically reduced with hydrogen to form methylamine. Use Lewis structures and bond energies to determine Heat of reaction.

Short Answer

Expert verified

The heat of reaction is-717 kJ

Step by step solution

01

Reduction of HCN

02

Heat of reaction

Energyrequiredwhenbondsbroken=1C-H+1(CN)bonds=1413+1891kJ/mol=1304kJ/mol

Energyreleasedwhenbondsformed=3C-H+2N-HBonds=3413+2391kJ=2021kJ

Therefore heat of reaction is=1304-2021kJ/mol=-717kJ

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